This document outlines the scenarios and metrics used to compare the new Dune package management feature against the traditional setup using opam + Dune. Each scenario aims to highlight differences in setup time, build time, and overall developer experience.
| Use-case | Dune | Opam | Description |
|---|---|---|---|
| Setup environment | ~1s | ~220s | Time to setup a new machine and be ready to execute a meaningful command with Dune (dune init, dune build, etc) |
| Setup environment and build new project | ~140s (install: 1s, lock: 61s, build: 79s) | ~400s | Time to prepare the environment for the first meaningful command, create an empty project, and execute dune build for the first time in that environment |
| Build new project in a warm environment | ~12s (lock: 11s, build: 1s) | ~120s | Time to create a new project, and execute dune build in an already setup environment |
| Setup environment and build Bonsai | ~460s (install: 1s, lock: 83s, build: 376s) | ~491s | Time to prepare a fresh environment and build Bonsai v0.16.0 from scratch |
| Build Bonsai in a warm environment | ~314s (lock: 14s, build: 300s) | ~263s | Time to build Bonsai v0.16.0 from scratch in an already set up environment |
Scripts:
-
Setup time
- Dune (./0.install-dune.sh)
- Opam (./0.install-opam.sh)
-
Setup environment and build new project
- Dune (./1.install-dune-and-build.sh)
- Opam (./1.install-opam-and-build.sh)
-
Build new project in a warm environment (requires running #2 first)
- Dune (./1.install-dune-and-build.sh)
- Opam (./2.reuse-opam-and-build.sh)
-
Setup environment and build Bonsai
- Dune (./2.install-dune-and-build-bonsai.sh)
- Opam (./3.install-opam-and-build-bonsai.sh)
-
Build Bonsai in a warm environment
- Dune (./2.install-dune-and-build-bonsai.sh)
- Opam (./4.reuse-opam-and-build-bonsai.sh)